Hi There,

Do you know if a sierra cossie fuel pump will fit a mk 4 s2 RST? If so, 2 wheel drive or 4 wheel drive - Not sure if this will make any difference. And will it be uprated in comparison to a standard RST Fuel Pump. (I know the escort cossie wont)

Also any help about where to get one from please.

Thanks in advance

Bryan

 

yes u can use a cosworth pump but can't confirm if it uprated or not but i'm pretty sure it is

when swapping the fuel pump also check the voltage your getting at the pump wires also if it's anything less than 13v replace your wiring with a relay setup with a fused live from battery and new earth wires also this way your pump should be getting over 14v all the time this can make a difference and not cause your engine to lean out at top-end (dependant on your engine setup)

 

from the battery to the pump could you tell me how you would rewire it please as ive been told before you need to do this because the old wires are useless and could lose voltage
cheers